Pig mold



l. W. AND J. H. SIMON.

PIG MOLD.

APPLICATIGN FILED AUG-27. 1921.

Patented Mar. 21,1922.

UNITED STATES PATENT OFFICE.

JOHN W. SIMON AND JOHN H. sIMON, or HOPEWELL, PENNSYLVANIA.

PIG MOLD.

To all whom it may concern:

Be it known that JOHN W. SIMON and JOHN H. SIMON, citizens of the United States of America, residing at Hopewell, in the county of Bedford and State of Pennsylvania, have invented new and useful Improvements in Pig Molds, of which the following is a specification.

The object of the invention is to provide a construction of mold for casting metal pigs wherein provision is made for preventing the separation of the parts due to the cracking of the mold members by the heat of the metal deposited therein and which cracking ordinarily results in the immediate destruction of the utility of the mold; and with this object in view the invention consists in a construction and combination of parts of which a preferred embodiment is shown in the accompanying drawings, wherein:

Figure 1 is a view of a pig mold embodying the invention.

Figure 2 is a sectional view of the same taken longitudinally.

Figure 3 is an elevation of the inside of one of the mold sections partly broken away.

The mold as in the ordinary commercial type consists of the member of the size and shape required for the castings, and in the walls, preferably at the center and close to each side edge there are the tensile rods 11 and 12, the metal of the mold being cast around the rods and theformer headed as at 13 beyond the surfaces of the mold walls and serving as a means to reinforce the mold Specification of Letters Patent. Patented luau 21, 1922 Application filed August 27, 1921.

Serial No. 495,880.

and preserve the shape regardless of the cracking of the same due to the heat of the molten metal introduced thereinto. The rods 12 are extended beyond the ends of the mold and the extremities of opposite rods are spanned by the bars lei which are secured in place by nuts 15. The bars 14 act as transverse strengthening means for the mold.

In the ordinary practice these molds after use in the casting of two or three or more pigs by reason of there being no retaining means the portions of the members fall apart and thereby destroy the utility of the mold while in other respects the same may be intact, and by the use of the longitudinally disposed tie rods exerting a tensile resistence the edges of the cracks are held in proper relation so that the molds may be used repeatedly after they would Otherwise become useless.

Having described the invention, what s claimed as new and useful is 1. A pig mold provided with longitudinal terminally headed tensile tie rods.

2. A ig mold provided with longitudinal termina ly headed tensile tie rods embedded in its walls. i

3. A pig mold provided in its walls with marginal and intermediate tie rods of which the former extend beyond the ends of the mold, and transverse bars spanning the 8X tremities of the marginal rods.

In testimony whereof they afiix their signatures.

JOHN WV. SIMON. JOHN H. SIMON. 

